The mummy known as Padihershef has been on display at the third oldest general hospital in the United States since it received him as a gift from the city in 1823 as a medical oddity.

An expert trained in restoring ancient artifacts will remove the mummy from his coffin Friday and use cotton swabs to clear salt deposits from his face. The salt is a byproduct of the mummification process. His coffin will also be repaired and stabilized.

Padihershef was a 40-year-old stonecutter in the necropolis in Thebes, an ancient city on the west bank of the Nile - in what is today's Luxor.